I use commsec for day trading plus a few other back up brokers...

I use commsec for day trading plus a few other back up brokers

Quite often there will be strange average prices for buys and sells

This can easily be broken down into a few scenarios, for every winning trade out there, someone is on the other side of that trade loosing. Depending on the spread for that particular day im not surprised to see the average margin be quite small

1. You have day traders who make a profitable / successful trade
2. You have day traders who are breaking even / brokerage trade
3. You have day traders who are taking a loss
4. Then you have your longer time frame traders/investors who may have bought in outside of the broker data range at a lower price still taking a profit, but not maximising there gains by selling the top or close too.

Cheers